Run gpt test suite against Ruby 3
Once the app works fine with Ruby 3, we should run our gpt performance test suite and collect results.
Result
As mentioned in #340294 (comment 957175844), the performance results against Ruby 3 are good and no specific problems were identified. In the additional run concluded in #340294 (comment 969729897) we can see that performance is on par with Ruby 2. And based on data above and additional runs against 3k envs with ruby 2 and ruby 3, the identified outliers turned out to be due to test results flakiness and not due to Ruby version.
Based on all above, GPT results are successful against Ruby 3 with no identified violations.
Edited by Aleksei Lipniagov